MODEL 303
DENTAL X-RAY
INSTALLATION
INSTRUCTIONS
(for USA & Canada)
This X-ray equipment may be dangerous to patients and operators
unless safe exposure factors and operating instructions are observed.
WARNING
R
-1-
INDEX PAGE
SECTION 1 : TECHNICAL DATA
[1] ELECTRICAL AND RADIATION DATA--------------------------------------------------- 2
[2] PHYSICAL DIMENSIONS-------------------------------------------------------------------- 3
[3] TUBE HEAD THERMAL CHARACTERISTICS ----------------------------------------- 4
SECTION 2 : PRE-INSTALLATION INSTRUCTIONS
[1] SUPPORT REQUIREMENTS ---------------------------------------------------------------- 5
[2] ELECTRICAL REQUIREMENTS ----------------------------------------------------------- 5
[3] LOCATION OF COMPONENTS------------------------------------------------------------- 6
SECTION 3 : INSTALLATION INSTRUCTIONS
[1] INSTALLATION REQUIREMENTS -------------------------------------------------------- 7
[2] UNPACKING ------------------------------------------------------------------------------------ 7
[3] MAIN CONTROLLER AND ARM INSTALLATION ------------------------------------ 8
[4] HEAD ASSEMBLY INSTALLATION------------------------------------------------------ 12
[5] SUB CONTROLLER INSTALLATION ---------------------------------------------------- 14
[6] HAND EXPOSURE SWITCH (OPTION) ------------------------------------------------- 15
SECTION 4 : POST INSTALLATION INSPECTION
[1] ARM ASSEMBLY ----------------------------------------------------------------------------- 16
[2] BALANCE ARM TENSION ADJUSTMENT --------------------------------------------- 16
[3] HEAD POSITIONING ------------------------------------------------------------------------ 16
SECTION 5 : CONTROL IDENTIFICATION AND OPERATION
[1] MAJOR COMPONENTS AND CONTROL IDENTIFICATION----------------------- 17
[2] FUNCTION OF CONTROLS ---------------------------------------------------------------- 18
[3] OPERATING PROCEDURES --------------------------------------------------------------- 20
[4] OPTIONAL HAND EXPOSURE SWITCH------------------------------------------------ 20
[5] ERROR CODES-------------------------------------------------------------------------------- 21
[6] MAINTENANCE ------------------------------------------------------------------------------ 22
SECTION 6 : POST INSTALLATION CONFIRMATION
[1] CONFIRMATION OF POWER SUPPLY VOLTAGE ------------------------------------ 23
[2] CONFIRMATION OF TUBE POTENTIAL AND TUBE CURRENT ----------------- 23
[3] CONFIRMATION OF TUBE CURRENT ------------------------------------------------- 23
[4] CONFIRMATION OF EXPOSURE WARNING LAMP & BUZZER ----------------- 24
[5] CONFIRMATION OF LINE VOLTAGE REGULATION ------------------------------- 24
SECTION 7 : INITIAL SETTING
[1] SPEED SETTING FOR FILM AND DIGITAL IMAGING------------------------------ 25
[2] PRIORITY OF SELECTIONS --------------------------------------------------------------- 26
[3] ELECTRONIC CHIME ON/OFF ------------------------------------------------------------ 27
APPENDIX 1 : CIRCUIT DIAGRAM------------------------------------------------------------ 27
APPENDIX 2 : PARTS IDENTIFICATION
[1] ARM AND HEAD ASSEMBLY ------------------------------------------------------------- 28
[2] CONTROLLER ASSEMBLY ---------------------------------------------------------------- 29
APPENDIX 3 : CERTIFICATION----------------------------------------------------------------- 30
This manual provides information and instructions for the installation, assembly calibration and
certification procedures for BELMONT PHOT-X II MODEL 303 dental x-ray.
The instructions contained in this book should be thoroughly read and understood by dealer service
personal before attempting to install the X-ray unit. After installation is completed, owners should
file this manual and refer back to it to schedule periodic maintenance.
CAUTION
-2-
[ 1 ] ELECTRICAL AND RADIATION DATA
1. X-ray tube --------------------------------------------------Toshiba D-0711 (Stationary Anode)
a. Focal spot------------------------------------------------0.7 mm
b. Target Material------------------------------------------Tungsten
c. Target angle ---------------------------------------------16˚
d. Maximum anode heat content ------------------------7kJ (10kHU)
2. Maximum x-ray tube assembly heat content ----------120kJ (170kHU)
3. Rated peak tube potential -------------------------------- 60 kV / 70 kV selectable
4. Rated tube current -----------------------------------------4 mA / 7 mA selectable
5. Maximum rated peak tube potential -------------------- 70 kV
6. Rated line voltage -----------------------------------------120 VAC, 60Hz, Single phase, 1.3 kVA
7. Line voltage range ----------------------------------------108 VAC ~ 132 VAC
8. Range of line voltage regulation ------------------------2 ~ 5 %
9. Rated line current -----------------------------------------10.8 A at 70 kV, 7 mA
10. Maximum line current ----------------------------------- 12 A at 70 kV, 7 mA
11. Exposure time ---------------------------------------------0.01 ~ 3.2 sec.
12. Inherent filtration -----------------------------------------1.7 mm Al Equivalent
13. Added filtration -------------------------------------------0.3 mm Al
14. Minimum filtration permanently in useful beam----- 2.0 mm Al Equivalent at 70 kV
15. Nominal roentgen output 60 kV 70 kV
4 mA 7 mA 4 mA 7mA
a. Distal end of regular cone ----------------------------- 5.4 9.4 7.1 12.4 mGy/sec. ± 40%
b. Distal end of long cone -------------------------------- 2.4 4.2 3.1 5.5 mGy/sec. ± 40%
(Data obtained by direct measurement in the useful beam)
16. Nominal electrical output of H.V. generator ----------0.49 kW at 70 kV, 7 mA
17. Cone Source to skin distance Field size
a. Regular cone -------------------------------------------- 8 inches (203 mm) 58 mm dia., circular
b. Long cone (option) -------------------------------------12 inches (305 mm) 58 mm dia., circular
c. Rectangular cone (option) ----------------------------- 8 inches (203 mm) 36 x 47 mm, rectangular
18. Maximum symmetrical radiation field----------------60 mm dia. at distal end of cone
19. Leaking technique factor -------------------------------70 kV / 0.14 mA
(0.14 mA is maximum rated continuous
current for 7 mA with a duty cycle 1 : 50)
20. Duty cycle ------------------------------------------------1 : 50 (0.5 sec. exposure with 25 sec. interval)
21. Maximum deviation of tube potential, tube current and exposure time
a. Below 0.1 sec. setting----------------------------------±10 kV, ±2 mA, ±5 msec.
b. 0.1 sec. setting & up -----------------------------------±5 kV, ±1 mA, ±10 msec.
22. Measurement base of technique factors
a. peak tube potential -------------------------------------Average of peak tube potentials during
one exposure
b. tube current---------------------------------------------- Average of tube current during one exposure
c. exposure time ------------------------------------------- Time period during x-ray is emitted
23. Half value layer ------------------------------------------1.5 mm Al over
24. Source to the base of cone distance ------------------- 94 mm
25. Environmental condition for storage ------------------ -20 ~ 70˚C, 10 ~ 100%, 500 ~ 1060hPa
SECTION 1 : TECHNICAL DATA
-3-
[ 2 ] PHYSICAL DIMENSIONS
Fig.1-1 Dimensions
( ) =mm
5-15/16" (150)
7"
(178)
8-5/16"
(211)
3" (76)
28-1/2" (723)
39-5/8" (1006)
45-3/4" (1162)
14-1/4" (361)
16-3/16" (462)
50-5/16" (1294)
13/16" (20)
9-3/16"
(233)
2" (50)
38-5/16" (973)
40-5/16" (1023)
48-5/16" (1243)
Short Cone
Long Cone
4-3/4"(122)
18-5/8"
(473)
220˚
600˚
90˚
90˚
300˚
MAX 75-5/8" (1922)
Cabinet Frame
31-1/2" (800) Max. 46-7/8" (1190)
Stroke 43-5/16" (1100)
2-1/4"
(58) 3-3/16"
(80)
3-9/16"
(90)
34-1/2"
(876)
19-1/16" ~ 62-3/16"
(480 ~ 1580) 56-1/2" ~ 78-3/16"
(1435 ~ 1985)
44-7/8"
(1165)
Focal Spot Marking
Reference Axis
SSD
SSD
+ 158 mm
160 mm
SSD (Source to Skin Distance) :
a. Regular cone----------8 inches (203 mm)
b. Long cone------------12 inches (305mm)
c. Rectangular cone-----8 inches (203 mm)
Location for Wires
-4-
[ 3 ] TUBE HEAD THERMAL CHARACTERISTICS
A. Interval between each exposure
The temperature inside of the tube head rises when an exposure is made. The value of the heat
generated is measured in Heat Units (HU), which is the product of tube potential, tube current
and exposure time. Excessive heat will accumulate inside of the tube head if the x-ray is used
without a proper cool down interval between each exposure. The excessive heat may damage the
x-ray tube, high voltage generator or both.
B. Duty cycle
A cool down interval of 50 seconds or more must be allowed between each 1 second exposure.
(a 25 second cool down must be allowed between each 0.5 second exposure.) This will avoid
the accumulation of excess heat and prolong the tube head life.
C. Tube head cooling curve
0
00.1 0.2 0.3 0.5 0.7 1235
5
10
15
20
25
30
00
1
12
210W
50kV
50kV
60kV
70kV
170W
130W
34
2
3
4
5
6
7
0
20
40
60
80
100
120
140
160
180
20 40 60 80 100
Time in Minutes
Load Time (sec.)
Time in Minutes
Heat Storage (k H.U.)
Tube Current (mA)
Heat Storage (kJ)
HEAT UP
COOL DOWN
3. Maximum rating chart
1. Tube Hosung cooling curve 2. Anode thermal characteristics
-5-
[ 1 ] SUPPORT REQUIREMENTS
Main Controller :
The main controller of model 303 has a wall plate
designed for mounting on two 2 x 4 wood studs with
16 inches (406mm) centers. The wall and mounting
hardware must be sufficient to withstand a 100 pound
(45kg) shear load and a 450 pound (205kg)with
drawal force at each of the four (ø 9 x 75mm) lag screws.
Sub Controller :
When mounting the model 303 sub controller, the wall and mounting
hardware must be sufficient to withstand a 10 pound (45kg) shear load.
If the PHOT-X II Model 303 is to be mounted in a manner other than
what is specified in this manual or if the hardware to be used is other
than what is supplied, the support capability of the wall and the
strength of the hardware must be checked and verified to be adequate.
[ 2 ] ELECTRICAL REQUIREMENTS
Power supply :
The model 303 x-ray system will operate on a power supply of 120VAC ± 10% (108 ~ 132V AC)
with a 3 wire GROUNDED circuit, separately connected to the central distribution panel with an
over current protection device rated for 15 amperes. Recommended wire size is 14 AWG ; but if
the wire run distance is to exceed 50 feet (15m), 12 AWG is required. For wire run distances in
excess of 75 feet (23m) 10 AWG is required. Line voltage regulation must be within 2 ~ 5 % at
10.8 amps.
Interconnecting wiring between main controller and sub controller :
4 conductor, 20 AWG, 300V is recommended. Maximum wire run distance is 33 feet (10m).
Concealed wiring :
Route conduit and wires through wall and into (2) flush mounted junction boxes located (1)
behind the main controller and (1) behind the sub controller. Recommended heights above the
finished floor for the flush junction boxes are : 44-7/8" (1140mm) for the main controller and
51-5/8" (1310mm) for the sub controller. Wiring done in this manner should extend 12 inches
(300mm) beyond the wall surface to allow sufficient wire for connections.
Note : Follow local and national electrical code (NFPA 70) requirements during installation.
SECTION 2 : PRE-INSTALLATION INSTRUCTIONS
CAUTION
Fig.2-1 Main Controller
Fig.2-2 Sub Controller
Fig.2-3 Concealed Wiring
-
O
PHOT-X II
C
T1 T5
T2 T3 T4
FD
P
kV
60 70
mA
ab
4 7
INC
INC
CUS
&
PM
CUS
&
PM
MLR OCC
MLR BW
Junction
Boxes
FROM
POWER
SOURCE
Terminal Block
in Main Controller Terminal Block
in Sub Controller
(1) (2)
WALL
12 3 4
L N
43 2 1
3P 4P 4P
Interconnecting Wire
-6-
[ 3 ] LOCATION OF COMPONENTS
A. Main Controller, Arm and Head Assemblies :
Using the information Provided in Fig.2-4, determine the correct location for the main
controller.
PHOTX-II Model 303 x-ray unit should be installed on the wall that prevents
the horizontal arm rotate 360˚.
NOTE : State and local requirements supersede guide lines indicated below.
CAUTION
B. Sub controller
When determining the location for the sub controller, the following radiation requirements
concerning the operator's positioning must be considered.
The operater must :
1. have full view of the patient.
2. have full view of kV, mA, timer selections and exposure warning light.
3. be a minimum of 6 feet (1.8m) away from the patient.
4. be out of line of the useful beam of radiation or be positioned behind a protective device
with x-ray protection equivalent of 1 mm of lead.
Fig.2-4 Radius of Activity for X-ray Head
2-1/4"
16"
(19-5/8")
75-5/8"
(71-5/8")
220˚
73-3/8"
(69-3/8")
(43-5/8")
39-5/8"
( ) : WITH LONG CONE
-7-
SECTION 3 : INSTALLATION INSTRUCTIONS
Within the installation and confirmation procedures are inspection/test steps which the installer must
perform to insure that the installation meets the manufacturer's specifications. These steps require the
installer to record the necessary information onto the "ASSEMBLER'S INSTALLATION SECTION
OF THE LIMITED WARRANTY REPORT FORM" supplied, which MUST be returned to BELMONT
along with the warranty card.
[ 1 ] INSTALLATION REQUIREMENTS
Tools :
Standard tool kit including 1.5 mm, 2 mm, 3 mm and 5 mm allen keys.
Instruments :
Digital multimeter with an accuracy of 1%, capable of measuring 150 V AC and 10 mA DC,
and capable of indicating true RMS value within 1 sec.
Standard calculator.
Power Supply :
Prior to starting the installation, inspect the power supply and confirm that it is 120VAC ±10%,
and a 3 wire GROUNDED circuit, separately connected to the circuit breaker panel with an over
current protection device rated for 15 A (Refer to Page 5, [2] ELECTRICAL REQUIREMENTS).
Record the voltage reading of power supply on "Assembler's Installation Report".
[ 2 ] UNPACKING
Unpack the entire contents of the shipping carton. Included within the shipping carton are :
Hardware Quantity
Head with Regular Cone ----------------------------------------------------------- 1
Main Controller---------------------------------------------------------------------- 1
Screw for chassis (M4 x 10 mm)-------------------------------------------------- 4
Screw for chassis (M4 x 20 mm)-------------------------------------------------- 1
Screw for nylon clamp on wall plate (M4 x 10 mm) --------------------------- 1
Stopper Ring ------------------------------------------------------------------------- 1
Nylon Clamp (3/8”)----------------------------------------------------------------- 1
Insulation Tube for interconnecting wires --------------------------------------- 1
Front cover seal---------------------------------------------------------------------- 4
Wall Plate----------------------------------------------------------------------------- 1
Lag Screws for wall plate (ø9 x 75 mm) ----------------------------------------- 4
Arm Mounting Bracket------------------------------------------------------------- 1
Machine Bolt (M8 x 20 mm) ------------------------------------------------------ 3
Washer (M8) ------------------------------------------------------------------------- 3
Sub Controller ----------------------------------------------------------------------- 1
Sub Controller Mounting wood screw (ø4.1 x 20 mm) ------------------------ 3
Head key------------------------------------------------------------------------------ 1
Arm collar ---------------------------------------------------------------------------- 1
Balance Arm ------------------------------------------------------------------------- 1
Balance Arm Wrench --------------------------------------------------------------- 1
Horizontal Arm W/2 x End Caps-------------------------------------------------- 1
Brake Screw (M6 x 6 mm)--------------------------------------------------------- 2
Brake Plug (Brass Plug ø5 X 4 mm) --------------------------------------------- 2
Retaining Bolt (M6 x 35 mm) ----------------------------------------------------- 2
Stopper Screw (M6 x 15 mm) ----------------------------------------------------- 1
Brake Spring (ø5 x 11 mm) -------------------------------------------------------- 1
Documentation Quantity
Installation manual ------------------------------------------------------------------ 1
Operators manual-------------------------------------------------------------------- 1
Limited Warranty / Report Form -------------------------------------------------- 1
Wall mounting Template ----------------------------------------------------------- 1
FDA Form 2579 --------------------------------------------------------------------- 1
Inspect contents of shipping carton for damage or missing components.
-8-
[ 3 ] MAIN CONTROLLER AND ARM INSTALLATION
The instructions given below are for mounting the main controller assembly on two 2 x 4 wood studs
with 16 inch (406mm) centers. Should the PHOT-XII MODEL 303 be mounted in a manner other than
what is specified here, the wall and the strength of the hardware used must be checked and verified as
being adequate to withstand a 100 pound (45kg) shear load and a 450 pound (205kg) withdrawal force
at each of the four (ø9 x 75mm) lag screws. When using concealed wiring, a flush mounted junction box
with the necessary conduit and wiring must be pre-installed at 44-7/8 inches (1140mm)from the floor
and between the two studs (refer to wall mounting template).
A. WALL PLATE OF MAIN CONTROLLER
Make sure the power supply is turned OFF at the circuit breaker panel.
1. Tape the wall mounting template to the wall, positioning it so that the holes for mounting plate
lag screws are aligned with the vertical 2 x 4" studs.
NOTE : Confirm that the location of concealed wiring matches to the access hole of wall plate
template.
2. Mark the hole locations for the mounting plate lag screws.
3. Use a 3/16" (5mm) dia. drill to make a pilot hole approximately 2" (50mm) deep for each mounting
plate lag screws.
Do not use a drill larger than 3/16" (5mm) dia. for these holes.
4. Place the wire through the hole into the stud mount
wall plate and mount the plate to the stud with the
four (ø9 x 75mm) lag screws.
DO NOT FULLY TIGHTEN.
5. Hold the plate firmly against the wall, place a level
across the front face. (#1 position in Fig.3-1)
If the wall is not plumb, use shims behind the plate
to level.
6. Place a level across top edge of wall plate, level and
tighten lag screws securely. (#2 position in Fig.3-1)
NOTE : Final leveling of wall plate is described on
page 16.
B. ARM MOUNTING BRACKET
1. Using three (M8 x 20mm) bolts with washers in top
mounting holes and in lower mounting hole, mount
arm mounting bracket to wall plate. (Fig.3-2)
WARNING
CAUTION
Fig.3-1 Wall Plate Installation
Wall Plate
Electrical
Wires
(ø9 x 75)
Lag Screw
Level
Level
# 2
# 1
Mats
Fig.3-2 Arm Mounting Bracket
Installation
Arm Mounting
Bracket
Electrical
Wires
Mats
(M8x20)
Bolt
Flat Washer
-9-
C. CHASSIS OF MAIN CONTROLLER
1. Remove the restriction plate over the terminal
blocks by taking out two (M 4 x 8mm) screws.
(Fig.3-3)
2. Route electrical interconnecting wires through
the access hole on chassis and mount the chassis
on the wall plate with four (M4 x 8mm) screws
and one (M4 x 20mm) screw. (Fig.3-3)
3. Put the supplied insulation tube on the
interconnecting wires to keep sufficient
insulation against the power supply wires.
4. Cut the wires to workable length and strip 3/8"
of insulation for power supply wires and 3/16"
for interconnecting wires for Sub Controller.
Connect power supply wires to 3P terminal
block and interconnecting wires to 4P terminal
block. (Fig.3-4)
5. Reattach the restriction plate.
(Fig.3-3)
D. HORIZONTAL ARM
1. Place a thrust washer over the hole on top of
the arm mounting bracket. (Fig.3-5)
Insert the cable and horizontal arm into the
hole, and mount to the arm mounting bracket,
as shown in Fig.3-5.
2. Insert two retaining bolts into the upper threaded
holes of the arm mounting bracket and tighten
securely with a Allen wrench. (Fig.3-6)
IMPORTANT :
The retaining bolts must be installed to ensure
that the horizontal arm can not lift out of the
arm mounting bracket.
3. Insert brake plug, brake spring and brake screw
(M6 x 6 mm) into the threaded hole of the hex
fitting located on the arm mounting bracket.
DO NOT FULLY TIGHTEN. (Fig.3-6)
Fig.3-3 Attaching Chassis to Wall Plate
Mats
Mats
Mats
Mats
Mats
Mats
Mats
Restriction
Plate
Chassis
Wall Plate
(M4x8)
Screw
(M4x8)
Screw
(M4x20)
Screw
Electrical
Wires
Fig.3-4 Wires Connection in Main Contoller
Horizontal Arm
Thrust Washer
Fig.3-5 Horizontal Arm Installation-1
Retaining Bolt
Retaining Bolt
Mats
Mats
Mats
Brake Plug
Hex Fitting
Horizontal Arm
Brake Spring
Brake Screw
Fig.3-6 Horizontal Arm Installation-2
1 2 3 4
L
N
3P Terminal
Block
4P Terminal
Block
Power Supply
Wires
Interconnecting Wires
(to Sub Controller)
-10-
4. Place a level on the horizontal arm and confirm
that the arm is level throughout its left and right
swing positions.
(Fig.3-7)
NOTE : Final leveling of horizontal arm is
described on Page 16.
5. Remove two (M3 x 6mm) screws and remove the
shielding cover for power PC Board.
(Fig.3-7)
6. Connect 2P and 8P connectors of horizontal
arm cable to the respective connectors on power
PC Board. (Fig.3-8)
7. Connect the 2 wires with ring terminals from the
arm cable to the chassis with a M5 screw.
The arm cable should be secured to the chassis
by a nylon cable clamp to prevent damage from
twisting. (Fig.3-8)
7. Re-install the shielding cover for power PC board
again. (Fig.3-7)
E. FRONT COVER
NOTE : The front cover for the main controller
should not be closed until all installation
and the post-installation inspections and
confirmation are completed.
1. The front cover has molded hooks on the inside that attach to notches in the metal chassis.
Hook the molded hooks on the front cover onto the chassis notches, and then push the top side
toward the wall to close. (Fig.3-9A)
2. Install two (M3 x 8mm) screws into the top of the cover and confirm that the cover is securely
attached. (Fig.3-9B)
Fig.3-7 Removing Shilding Cover
Level
Horizontal
Arm
Shielding
Cover
Mats
Mats
(M3x6)
Screw
Fig.3-8 Connecting 2P and 8P Connectors
on Power PC Board
Mats
Nylon
Clamp
Ring
Terminals
2P
Connector
Power PC
Board
8P
Connector
(M5x10) Screw
Horizontal Arm
Cable
Fig.3-9A Attaching Front Cover-1 Fig.3-9B Attaching Front Cover-2
(M3x8) Screw
Front Cover
Front Cover
Chassis
Molded Hook
-11-
F. BALANCE ARM ASSEMBLY
Do not release Arm holding band until the X-ray head
has been installed.
Balance arm assembly is spring loaded and can cause
equipment damage and injury if not handled in the
proper manner.
1. During this procedure, do not remove Arm holding
band.
2. Remove two (M3 x 8mm) screws from the underside
of the horizontal arm to open the bottom cover. (Fig.3-10)
3. Route the cable with 2P and 8P connectors from
the balance arm shaft through the horizontal arm.
Insert the balance arm into the horizontal arm.
The cable should be fed through the bottom cover
opening on the bottom of the horizontal arm. (Fig.3-11)
4. Secure the 3 wires (Grounded wires) together with ring
terminals with the (M5 x 10mm) screw on the bottom cover.
(Fig.3-12A)
Note : Three ring terminals should not protrude from a
chassis plate. (Fig.3-12A)
5. Secure the wires from the balance arm to the bottom cover with the nylon cable clamp to prevent
damage from twisting. (Fig.3-12B) Then connect the 2P and 8P connectors. (Fig.3-12C)
6. Re-attach the bottom cover to the horizontal arm with two screws. (Fig.3-11)
WARNING
Fig.3-10 Horizontal Arm Bottom Cover
Mats
Mats
Mats
Horizontal Arm
Bottom
Cover
(M3 x 8)
Screw
CAUTION !
DO NOT RELEASE
THIS BAND UNTIL
X-RAY HEAD IS
INSTALLED
Mats
Mats
Mats
Arm Holding
Band
Caution
Tag
Balance Arm
Shaft
Balance Arm
Cable from
Balance Arm
Fig.3-11 Balance Arm Installation
Fig.3-12A AttachingGrounded Wires on
Bottom Cover
Fig.3-12B Attaching Balance Arm Cable
on Bottom Cover Fig.3-12C Connection of Connectors
on Bottom Cover
Mats
Mats
Nylon
Clamp
(M5 x 10)
Screw
Mats
Mats
2P Connector
8P Connector
Mats
Mats
Cable from
Balance Arm
Chassis Plate
(M5 x 10)
Screw
-12-
7. Insert the brake plug and brake screw (M6 x 6mm)
into the horizontal arm collar. (Fig.3-13)
Do not fully tighten.
8. Remove the end cap from horizontal arm.
Insert the stopper screw into upper threaded hole
inside horizontal arm and tighten securely.
Replace the end cap. (Fig.3-13)
If stopper screw is not tightened securely, the
Balance Arm can lift out of the horizontal arm.
[ 4 ] HEAD ASSEMBLY INSTALLATION
Do not release Arm holding band until the
X-ray head has been installed.
Balance arm assembly is spring loaded and
can cause equipment damage and injury
if not handled in the proper manner.
Refer to the Caution Tag on the band.
1. Remove the arm collar screw (M4 x 8mm) from
the arm collar. Slide the arm collar upward and
temporarily hold it in position with adhesive tape.
(Fig.3-14)
2. Open the yoke inside cover of x-ray head by
removing (M3 x8mm) countersunk screw.
(Fig.3-15)
Note : When opening the yoke inside cover,
use a short screw driver.
3. Making sure the stopper ring is placed on the
yoke, insert the wiring from the balance
arm assembly through the head shaft and into
the yoke. (Fig.3-16)
CAUTION
WARNING
Fig.3-13 Attaching Balance Arm
to Horizontal Arm
Fig.3-14 Setting Arm Collar on
Balance Arm
CAUTION !
DO NOT RELEASE
THIS BAND UNTIL
X-RAY HEAD IS
INSTALLED
CAUTION !
DO NOT RELEASE
THIS BAND UNTIL
X-RAY HEAD IS
INSTALLED
Arm Holding
Band
Caution Tag
Adhesive
Tape
Arm Collar
Screw
(M4 x 8)
UP-Mark
Arm
Collar
UP
Fig.3-15 Removing Yoke Inside Cover
Mats
Mats
Brake Screw
Horizontal
Arm
Horizontal
Arm Collar
Stopper
Screw
Arm End Cap
Brake Plug
Balance Arm
MatsMats
Mats
Yoke
X-ray Head
CP Values Label
Yoke Inside
Cover
Yoke Inside
Cover Screw
(M3 x 8)
Short Screw
Driver
-13-
4. Insert the shaft of the balance arm into the
head yoke, and while holding the head in
position, insert the head key securely into the
retaining groove. (Fig.3-16)
5. Remove adhesive tape and slide the arm collar
downward. Fix it in place with the arm collar
screw.
Remove the UP-mark from the arm collar.
(Fig.3-16)
6. Loosen the (M5 x 10mm) screw and remove
the nylon cable clamp from the yoke housing.
Place cable clamp on the balance arm cable.
Connect the 10P connectors, and then attach
the balance arm cable to the yoke housing
with the nylon cable clamp. (Fig.3-17)
7. Remove the (M5 x 10mm) screw from the ground
terminal inside of the yoke housing.
Secure the green ground wires from balance arm
and head to the ground terminal with the
(M5 x 10mm) screw. (Fig.3-17)
8. Reattach the yoke inside cover with the screw
(M3 x8mm). Before closing the cover, note
the CP values on the CP values label inside
of the yoke. (Fig.3-15)
9. Remove arm holding band.
Fig.3-16 X-ray Head Installation
CAUTION !
DO NOT RELEASE
THIS BAND UNTIL
X-RAY HEAD IS
INSTALLED
CAUTION !
DO NOT RELEASE
THIS BAND UNTIL
X-RAY HEAD IS
INSTALLED
Arm Holding
Band
Caution Tag Arm Collar
Screw (M4 x 8)
Arm Collar
UP-Mark
Head Key
Stopper Ring
UP
Yoke
Head
Fig.3-17 Connection 10P Connector in Yoke
Ground
Terminal Nylon
Clamp
(M5 x10) Screw
10P
Connector
Yoke
Housing
CAUTION
[ 5 ] SUB CONTROLLER INSTALLATION
The wall and the strength of the hardware used must be checked and verified as being adequate to
withstand a 10 pound (4.5kg) shear load. A flush mounted junction box with the necessary conduit
and wiring should be pre-installed at 51-5/8" (1310mm) from the floor.
1. Remove two (M3 x8mm) screws from top of the
control box and open the front panel. (Fig.3-18)
2. Disconnect the 4P connector from the timer PC Board.
(Fig.3-19)
3. Route the interconnecting wires from the main
controller through access hole of chassis and
mount on the wall with three (ø4.1 x 20mm) wood
screws. (Fig.3-19)
4. Cut 4 interconnecting wires from main controller
to a workable length. Strip 3/16" insulation off the
wires and connect them to the 4P terminal block.
Terminal number for each wire should be matched to
the terminal number in the main controller. (Fig.3-20)
Miswiring causes permanent damage to both
timer PC board and power PC board.
5. If wire length is too long, push it back into the access
hole of the wall. This will prevent mechanical damage
to the timer PC Board when replacing the front cover.
6. Reattach the 4P connector to the timer PC Board
(Fig.3-19)
7. Set the pins located on thebottom of the front panel
into holes on the bottom of chassis and attach the front
cover to the chassis with two (M3 x 8mm) screws.
(Fig.3-18 & Fig.3-21)
-14-
Fig.3-18 Opening Front Panel
CFD
P
kV
6070
mA
ab
47
Screw (M3 x 8)
Front Panel
Fig.3-19 Attaching Sub Controller
Chassis
Fig.3-20 Interconnecting Wires Connection
in Sub Controller
Chassis
4P Terminal
Block
4 x Interconecting Wires
(From Main Controller)
1 2 3 4
Pin
Chassis
Hole
Front Panel
Fig.3-21 Bottom of Sub Controller
1234
Chassis
4P Connector
4P Terminal
Block
Interconnecting
wires
(From Main Controller)
Front Panel
Timer PC
Board
Wood Screw
(ø4.1 x 20)
-15-
[ 6 ] HAND EXPOSURE SWITCH (OPTION)
An optional hand exposure switch can be connected to
the sub controller. Since this exposure switch has a coiled
cord, operator can stand the most suitable position for
operation.
The exposure switch on the front panel of sub
controller and this hand exposure switch can be used.
If local code prohibits use of both switches, disconnect
the connector of either one of the switches.
1. Confirm the contents of optional hand exposure switch
kit. (Fig.3-22)
Hand exposure switch ------------------------------ 1
Hook -------------------------------------------------- 1
Screw for hook (ø3 x 8mm Tapping screw) ----- 1
2. Remove two (M3 x 8mm) screws from top of the
sub controller and open front panel.
3. Connect the connector at the end of hand exposure
switch coil cord to CN3 connector on
the timer PC board. (Fig.3-23)
4. Insert the bushing of coil cord into the slot at the
bottom of the chassis, reattach the front cover and
secure two (M3 x 8mm) screws again.
(Fig.3-23)
5. Place the hook on the top corner (right or left) of
controller and attach it with the tapping screw
(ø3 x 8mm). (Fig.3-24)
Fig.3-22 Hand Exposure Switch Kit
Hand Exposure Switch
Hook
Tapping
Screw
(ø3 x8)
Fig.3-23 Connecting Hand Exposure
Switch
1234
Chassis
Timer
PC Board
Front Panel
CN3 CN2
CN3
Hand Exposure
Switch Connector
Bushing Bottom of Sub Contoller
Bushing
Fig.3-24 Attaching Hand Exposure
Switch Hook
D
P
kV
60 70
mA
47
Tapping
Screw
(ø3 x 8)
Hook
-16-
SECTION 4 : POST INSTALLATION INSPECTION
[ 1 ] ARM ASSEMBLY
1. Incorrect leveling of the wall plate and wall bracket can cause arm drift. First, check leveling
with horizontal arm in position #1. (Fig.3-25) If not correct, bracket must be adjusted by
placing shims behind the wall plate.
IMPORTANT :
If the end of the horizontal arm shown in position #1 is pitched below level, then the tube head
will drift away from the wall. If the end of the horizontal arm in position #1 is pitched above
level, then the arm will require only minimum adjustment of the brake screw. (Fig.3-13)
2. Check leveling in position #2. if not correct, adjust
Horizontal Arm as follows : (Fig.3-25)
a. Slightly loosen two top mounting bolts for arm
mounting bracket.
b. Shift the bracket left or right until the arms are
accurately leveled.
c. Move the horizontal arm to position # 1.
d. Fully tighten two top mounting bolts.
e. Fully tighten bottom mounting bolt.
NOTE : Slight tendencies to drift can be corrected
by tightening brake screw in horizontal arm.
Do not tighten beyond what is required to
prevent drift.
[ 2 ] BALANCE ARM TENSION ADJUSTMENT
1. Place the balance arm assembly into position.
2. If either balance arm drifts higher or lower from
the set position, remove the spring adjuster cover
and adjust the balance arm spring tension with
the balance arm wrench. (Fig.3-26)
[ 3 ] HEAD POSITIONING
A. Place head into position.
B. If head drifts from the set position, adjust the brake
screws according to the following procedures.
(Fig.3-27)
1. Loosen the yoke side cap screw (ø3 x 8mm
tapping screw) and remove the yoke side cap.
2. Adjust the six brake screws using a screw driver.
3. After adjustment, reteach the yoke side cap and screw.
Fig.3-25 Horizontal Arm Adjustment
Mats
Mats
Mats
Horizontal
Arm
Level
Level
Top Mounting
Bolt Bottom Mounting
Bolt
#1
#2
Fig.3-26 Balance Arm Tension Adjustment
Balance
Arm
Balance Arm
Wrench
Spring Adjuster
Cover
Loosen
Tighten
Fig.3-27 Head Positioning
Mats
Mats
Mats
Mats
Mats
Mats
Yoke
Brake Screw
Yoke Side Cap
Yoke Side
Cap Screw
Tighten
Loosen
-17-
SECTION 5 : CONTROL IDENTIFICATION AND OPERATION
[ 1 ] MAJOR COMPONENTS AND CONTROL IDENTIFICATION
qMain Power Switch !0 Cone Type Selection Switch
wReady Light !1 Film Speed Selection Switch
eExposure Time Adjusting Switch (Down) !2 Digital Imaging Switch
rExposure Time Adjusting Switch (Up) !3 kV Selection Switch
tTooth Selection Switch (T1) !4 mA Selection Switch
yTooth Selection Switch (T2) !5 Patient Size Selection Switch
uTooth Selection Switch (T3) !6 Exposure Time Display Window
iTooth Selection Switch (T4) !7 Exposure Warning Light
oTooth Selection Switch (T5) !8 Exposure Switch
Fig.5-1 Major Components and Control Identification
C
T1 T5
T2 T3 T4
FD
P
kV
60 70
mA
ab
4 7
INC
INC
CUS
&
PM
CUS
&
PM
MLR OCC
MLR BW
1
3
4
5
6
7
2
8
9
10 11 12 13 14
15
17
18
16
-18-
[ 2 ] FUNCTION OF CONTROLS
qMain Power Switch
Pushing the upper side of this switch to the ON position energizes the x-ray unit. (Ready light
and pre-select light for cone type, film or digital, kV, mA, and patient size illuminate.)
It is recommended to keep this switch OFF when the unit is not in use, in order to prevent an
accidental exposure.
IMPORTANT : To prevent the risk of an accidental exposure, push the lower side
of this switch to the OFF position, when the unit is not in use.
wReady Light
This light illuminates when the line voltage is within operable range (108 ~ 132Vac).
When this light is not on, exposure can not be made.
e r Exposure Time Adjusting Switches
By momentarily pushing the (or ) switch, the exposure time displayed increases (or decreases)
by one increment. By keeping the switch depressed more 2 sec., the exposure time displayed
increases (or decreases) continuously until the switch is released.
Model 303 has the following 24 exposure time settings :
0.00, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.08, 0.10, 0.13, 0.16, 0.20, 0.25, 0.32, 0.40
0.50, 0.63, 0.80, 1.00, 1.25, 1.60, 2.00, 2.50, 3.20 (sec.)
t ~ o Tooth Selection Switches (T1 ~ T5)
Pushing one of these switches sets the exposure time automatically for the following !0 ~ !5.
t T1 : Incisor of Mandible
y T2 : Incisor of Maxilla, Cuspid & Premolar of Mandible
u T3 : Cuspid & Premolar of Maxilla, Molars of Mandible, Bite Wing
i T4 : Molar of Maxilla, Bite Wing Molars
o T5 : Occlusal
If the T1 switch t is depressed more than 3 sec., unit goes into “ Lock Mode”.
In lock mode, the only functional switch is the power switch. To exit from the lock mode, depress
the T1 switch more than 3 sec. again.
!0 Cone Type Selection Switch
Depressing this switch for more than 2 sec. selects the cone type : 8” standard cone or 12”
optional long cone. (If the optional rectangular cone is to be used, select the 8” standard cone setting.)
!1 Film Speed Selection Switch
a. PHOT-X II has 16 film speed settings : (F.00 ~ F.15)
Two speed settings are pre-set at the factory (a & b) and can be selected with !1.
a = Film speed No. F.09 (equivalent to ISO speed group “ D” or Kodak Ultra-Speed film)
b = Film speed No. F.05 (equivalent to ISO speed group “ F/E” or Kodak InSight film)
b. Pushing this switch momentarily displays the selected film speed setting in the Exposure
Time Display Window !6.
Depressing this switch for more than 2 sec. changes the film type being selected.
c. If the Digital Imaging Switch !2 is depressed, both of the film speed indicating light (a & b)
are turned off.
!2 Digital Imaging Switch
If a digital imaging system is used, shorter exposure time is often required. PHOT-X II has 16
speeds for digital imaging : (d.00 ~ d.15). Pushing this switch momentarily displays the speed
being selected in the Exposure Time Display Window !6. With the factory speed setting d.06,
the exposure time becomes half of F.06 setting.
-19-
!3 kV Selection Switch
Momentarily depressing this switch will change the tube potential to 60 or 70 kV. Since the tube
potential is constant DC, a 60 kV setting on the PHOT-X II is similar to a 70 kVp setting on a
conventional x-ray. If either the Film Speed Switch !1 or Digital Imaging Switch !2 is
depressed, 60kV is automatically selected.
!4 mA Selection Switch
Momentarily depressing this switch will change the tube current setting (4 or 7 mA).
If the Digital Imaging Switch !2 is depressed, 4 mA is automatically selected and if the Film Speed
Switch !1 is depressed, 7 mA is automatically selected.
!5 Patient Size Selection Switch
This switch alters the selection of patient type/size to be radiographed (child adult large child)
and sets the exposure time automatically.
NOTE : Setting or adjusting the exposure time manually (with or switch) supersedes
tt
tt
t ~ !5!5
!5!5
!5 functions.
!6 Exposure Time Display Window
This window displays the selected exposure time. If an abnormal condition exists or a malfunction
occurs, an Error Code is displayed. (See Section : [4] ERROR CODES)
!7 Exposure Warning Light
Illumination of this light indicates the unit is producing x-radiation.
!8 Exposure Switch
This switch initiates radiographic exposure. When making an exposure, depress and hold this
switch unit the Exposure Warning Light !7 and the audible warning shut off. Failure to keep this
switch depressed will result in the premature termination of the exposure and error code E.00 will
be displayed in Exposure Time Display Window !6.
Speed
Setting
F.09
F.05
d.06
kV mA
60
60
60
70
70
70
4
7
4
7
0.16
0.08
0.10
0.06
0.06
0.03
0.04
0.02
0.08
0.04
0.05
0.03
0.08
0.05
0.06
0.04
0.10
0.06
0.08
0.04
0.16
0.08
0.10
0.06
0.04
0.02
0.03
0.02
0.05
0.03
0.03
0.02
0.05
0.03
0.04
0.02
0.06
0.04
0.04
0.03
0.10
0.10
0.06
0.04
0.16
0.10
0.13
0.08
0.20
0.13
0.16
0.08
0.25
0.13
0.16
0.10
0.32
0.20
0.25
0.16
0.32
0.16
0.20
0.13
0.32
0.16
0.20
0.13
0.40
0.20
0.25
0.16
0.40
0.25
0.32
0.20
0.50
0.32
0.40
0.20
0.80
0.40
0.50
0.32
0.32
0.20
0.25
0.16
0.40
0.25
0.32
0.16
0.63
0.32
0.40
0.25
0.25
0.13
0.16
0.10
0.25
0.13
0.16
0.10 0.13
0.06
0.08
0.05
0.13
0.08
0.10
0.05
0.16
0.08
0.10
0.06
0.16
0.08
0.10
0.06
0.20
0.10
0.13
0.08
0.20
0.13
0.16
0.08
0.32
0.16
0.20
0.13
0.16
0.10
0.13
0.06
0.06
0.04
0.05
0.03
0.08
0.04
0.05
0.03
0.20
0.10
0.13
0.08
0.08
0.05
0.06
0.03
0.10
0.06
0.08
0.04
0.13
0.08
0.10
0.05
0.10
0.06
0.08
0.05
0.16
0.08
0.10
0.06
0.10
0.05
0.06
0.04
0.10
0.05
0.06
0.04
0.10
0.06
0.08
0.04
4
7
4
7
4
7
4
7
Child Adult Large Adult
T1 T2 T3 T4 T5 T1 T2 T3 T4 T5 T1 T2 T3 T4 T5
TABLE 1. Speed Setting and Exposure Time (Regular Cone) [ unit : sec.]
Speed
Setting
F.09
F.05
d.06
kV mA
60
60
60
70
70
70
4
7
4
7
0.40
0.25
0.32
0.16
0.16
0.10
0.13
0.06
0.20
0.10
0.13
0.08
0.25
0.13
0.16
0.10
0.25
0.16
0.20
0.10
0.40
0.25
0.25
0.16
0.10
0.06
0.08
0.04
0.13
0.08
0.08
0.05
0.16
0.08
0.10
0.06
0.16
0.10
0.13
0.06
0.25
0.13
0.16
0.10
0.50
0.25
0.32
0.20
0.63
0.32
0.40
0.25
0.63
0.40
0.50
0.25
1.00
0.50
0.63
0.40
0.80
0.50
0.63
0.32
0.80
0.50
0.63
0.32
1.00
0.63
0.80
0.40
1.25
0.63
0.80
0.50
1.25
0.80
1.00
0.50
2.00
1.25
1.60
0.80
1.00
0.50
0.63
0.40
1.00
0.63
0.80
0.50
1.60
1.00
1.25
0.63
0.63
0.40
0.50
0.25
0.63
0.40
0.50
0.25 0.32
0.20
0.25
0.13
0.32
0.20
0.25
0.13
0.40
0.25
0.25
0.16
0.40
0.25
0.32
0.16
0.50
0.25
0.32
0.20
0.63
0.32
0.40
0.25
0.80
0.50
0.63
0.32
0.50
0.25
0.32
0.20
0.16
0.10
0.13
0.06
0.20
0.13
0.16
0.08
0.50
0.32
0.40
0.20
0.20
0.13
0.16
0.08
0.25
0.16
0.20
0.13
0.32
0.20
0.25
0.13
0.32
0.16
0.20
0.13
0.40
0.25
0.32
0.16
0.25
0.13
0.16
0.10
0.25
0.16
0.20
0.10
0.25
0.16
0.20
0.10
4
7
4
7
4
7
4
7
Child Adult Large Adult
T1 T2 T3 T4 T5 T1 T2 T3 T4 T5 T1 T2 T3 T4 T5
TABLE 2. Speed Setting and Exposure Time (Long Cone) [ unit : sec.]
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Belmont Phot-X II 303 Installation guide
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